带图像的GridView滚动滚动不流畅

Question

您好，因为我是Android开发的新手，并且对滚动视图不太了解，现在我面临着关于gridView滚动的问题，我的网格视图中有20个图像，当我尝试向下滚动查看时它没有正确滚动的图像会减慢速度，有时它会说应用程序已停止响应并崩溃。任何人都可以帮助我使滚动顺利并解决这个问题。 这是我的＃34; ImageAdapter＆＃34;

的代码

public class ImageAdapter extends BaseAdapter{
    private Context mContext;

    private int[] mThumbsIda={
            R.drawable.sample_1,
            R.drawable.sample_2,
            R.drawable.sample_3,
            R.drawable.sample_4,
            R.drawable.sample_5,
            R.drawable.sample_6,
            R.drawable.sample_7,
            R.drawable.sample_8,
            R.drawable.sample_9,
            R.drawable.sample_10,
            R.drawable.sample_11,
            R.drawable.sample_12,
            R.drawable.sample_13,
            R.drawable.sample_14,
            R.drawable.sample_15,
            R.drawable.sample_16,
            R.drawable.sample_17,
            R.drawable.sample_18,
            R.drawable.sample_19,
            R.drawable.sample_20,
            R.drawable.sample_21,
            R.drawable.sample_22,
            R.drawable.sample_23
    };

    public ImageAdapter(Context c){
        mContext = c;
    }
    public int getCount(){
        return mThumbsIda.length;
    }
    public Object getItem(int position){
        return null;
    }
    public long getItemId(int position){
        return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent){

        ImageView imageView;
        if (convertView == null) {

            imageView = new ImageView(mContext);
            imageView.setLayoutParams(new GridView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,385));
            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
            imageView.setPadding(5,5,5,5);

        }
        else{
            imageView = (ImageView) convertView;
        }

        imageView.setImageResource(mThumbsIda[position]);
        return imageView;
    }

}